He was the nice guy to help out in the training, giving the ground instruction.
On the flight portion he was telling when line is tight, when load is airborne.
And telling me when the load was on the spot and to be released.
This was for flight training purposes only! New type and what´s assiociated with it.They do thourough instruction and leave nothing to be desired.
Usually ext loads are flown by pilot only of course.